Both the equal-variances and unequal variances test statistic and confidence interval estimator of require that the two populations be normally distributed.

Question

Both the equal-variances and unequal variances test statistic and confidence interval estimator of  require that the two populations be normally distributed.

Quizplus · Accepted Answer

Both the equal-variances and unequal variances test statistic and confidence interval estimator assume normal distribution of the two populations. If this assumption is not met, other non-parametric tests and confidence interval estimators can be used instead.

Both the Equal-Variances and Unequal Variances Test Statistic and Confidence